The game is fine. It's not really bad, but not that good either. Just inbetween.
I didn't get invested in the story, so I didn't bother to read it later (I also discovered that pressing Ctrl allows you to skip text). But nobody cares about the plot in porn anyways, right?
The gameplay in the game is pretty interesting. You have some troops, and you also have monsters that you can send to fight. Troops are made to fight troops, and monsters fight other monsters and giant girls. You can quickly find that special characters like that blue hairedgirl, or the girl that looks like angel from KoF, or the cool sniper girl (or mc, but I ignored him) can be upgraded. You can even unlock some new skills for the girls by upgrading enough of their stats. Monsters can be upgraded too, and the same rules apply to them too. To get new monsters you have to fight them first. By winning you unlock that monster, and later you will be able to make an even stronger version of that monsters. Fights themselves are turn-based, nothing special really.
Art here is decent. Character designs are fine, among the girls I really liked the angel looking gal, the sniper girl, and the red-haired boss. They look the best, the rest was fine.Some monster designs on the other hand were a total miss for me. Maybe it's inspired by all of those bizarre looking creature from all the sentai shows or godzila movies, and I just can't appreciate them. However I did like Poseidro, the last monster that you will be able to unlock.
Sex scenes are fine too. Most of the scenes are animated, half of them (consensual ones) involve mc, the rest (rape scenes) involve some of your goons. Can't say that the art was something special, but it's not bad either.
Overall the game isn't that memorable. I think it's a decent game to beat it once. It's not even hard, and the game is really short.